(Optional) Authorizing Apps to Call an API

Overview

If the function API uses the App authentication mode, you need to authorize specified integration applications to call this API. When a user calls the API, the key and secret of the integration applications are used for authenticating API requests.

Prerequisites

• The security authentication mode of the API is set to App.
• The API has been published in an environment. Otherwise, publish the API first.

Granting Permissions for Integration Applications

1. Log in to the ROMA Connect console. On the Instances page, click View Console next to a specific instance.
2. In the navigation pane, choose API Connect > API Management. On the APIs tab page, choose Authorize App.
3. On the Authorize App page, click Select App.
4. In the Select App dialog box, configure authorization information and click OK.
   After the authorization is complete, click on the left of the API to view the list of authorized integration applications.

   Table 1 Authorization configuration

   Parameter	Description
   Environment	Select the environment in which the API to be authorized has been published.
   Integration Application	Select the integration application to which the API calling permission is to be assigned.
   Access Parameters	Set access parameters for the authorized integration application. The access parameters will be added to the backend signature authentication information and sent to a backend service. The backend service then returns different response parameters based on the carried access parameters.
   Green Channel	Determine whether to enable the green channel. After the green channel is enabled, you also need to set Whitelist and Blacklist.
   Whitelist	This parameter is mandatory only if Green Channel is enabled. Enter the IP addresses or IP address segments to be added to the whitelist. The IP addresses in the whitelist can call APIs without authentication.
   Blacklisted	This parameter is available only if Green Channel is enabled. Enter the IP addresses or IP address segments to be added to the blacklist. The IP addresses in the blacklist are not allowed to call APIs.